将所得变化规律与等效粘性阻尼理论相结合,给出了一种依赖于应变和频率的非线性阻尼本构关系式。
Based on above fitted relation and equivalent viscous damping theory, a nonlinear constitutive equation of damping alloy depending on strain amplitude and frequency is put forward.
研究认为温度与应变率影响的变形机制与位错运动过程的粘性效应有关。
The results indicate that the deformation mechanic under the action of temperature and strain rate is related to the viscosity effect in process of dislocation motions.
文中假定,弹性阶段的粘性效应可以略去,仅在塑性应变中粘性才起作用。
It is assumed that the viscosity effect can be neglected for elasticity strain, and only for plasticity strain, the viscosity is significant.
本文利用动力三轴仪模拟列车荷载作用下铁路路堑中超固结粘性土的受力情况。 研究了在列车荷载作用下该土的动应力与动应变的关系及轴向永久变形的若干规律。
This paper discusses the stress conditions of the overconsolidation cohesive soils cut out of the railway under the load of a moving train simulated through applied dynamic triaxial apparatus.
由研究可以看出,不同的构造层次对应着不同的强度、粘性及应变率。
It is shown from the study that different hierarchy levels correspond to different strength, viscosity and deformation rate.
原状粘性土在平面应变条件下量测侧向局部变形的试验研究国内外鲜见报导。
Study of tests for measuring lateral strain localization of undisturbed clay in the condition of plane strain compression was rarely reported at home and abroad.
利用磁流变体粘性可变的特性,设计了一种自适应变阻尼磁流变体减振器。
Using magnetorhelogical suspensions characteristic of damping variable designed an adaptive damping variable magnetorhelogical suspensions damper. The damper requires not energy source device.
为了反映冲击载荷下岩石材料的应变率敏感性,对损伤的门槛值进行粘性调整。
The damage threshold is regularized in order to reflect strain-rate sensitivity of rock materials under impact load.
剪切应力数值与其产生应变速率的比值叫粘性,用来衡量非晶材料抵抗永久变形的能力。
The ratio of the magnitude of an applied shear stress to the velocity gradient that it produces; that is, a measure of a noncrystalline material's resistance to permanent deformation.
较快注塑(到点):在填料过程中冷却较少,因此初始固化层较薄,由于剪应变稀少而粘性较低;
Faster injection (up to a point): less cooling during filling, hence a thinner initial frozen layer, lower viscosity due to shear thinning;
为了研究粘性效应作用下的扩展裂纹尖端场,假设扩展裂纹尖端的人工粘性系数与塑性应变率的幂次成反比,推导出理想弹塑性材料的一种率敏感型本构关系。
The strain fields in damage zone around crack-tip are measured for different strain hardening exponent material specimens with double edge cracks using digital speckle correlation technique.
为了研究粘性效应作用下的扩展裂纹尖端场,假设扩展裂纹尖端的人工粘性系数与塑性应变率的幂次成反比,推导出理想弹塑性材料的一种率敏感型本构关系。
The strain fields in damage zone around crack-tip are measured for different strain hardening exponent material specimens with double edge cracks using digital speckle correlation technique.
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